Are you sure? They would be violating their own rules by suggesting that: https://help.market.envato.com/hc/en-us/articles/202822690-WordPress-Variations-Policy
Basically, a WooCommerce version as a new theme is valid if that’s what the new theme is about. A specialist, WooCommerce theme - which would obviously imply a special home-page catered to the eCommerce niche and a change in category as well. That’s clearly not the case with the link by OP.